Patents Assigned to Akzo S.r.l.
  • Motor-boat hull
    Patent number: 4924797
    Abstract: A motor-boat hull (10) includes a planing bottom (C) having a V-shaped forward portion, two float-like side portions (14) connected forwardly to the V-shaped portion (12), and a flat recessed aft portion (16) delimited by the side portions (14) and forwardly by a transverse step (18) connecting it with the V-shaped forward portion (12) of the bottom (C).
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: May 15, 1990
    Assignee: Akzo S.r.l.
    Inventor: Franco Solia
  • Sailing-boat hull
    Patent number: 4922844
    Abstract: A sailing-boat hull includes a bottom (C) provided with a projecting keel (12) of U-shaped cross-section which is connected laterally to the sides (F) by two longitudinal channels (14) of rounded section so as to define, with the sides (F), two longitudinal side portions (16) of rounded section extending substantially the entire length of the hull. The rounded side portions (16) of the bottom (C) are situated at a higher level than the keel (12).
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: May 8, 1990
    Assignee: AKZO S.r.l.
    Inventor: Franco Solia
  • Boat propeller having counter-rotating screws and provided with a nozzle
    Patent number: 4832570
    Abstract: A screw propeller (10) for boats includes two counter-rotating screws (12, 16) coaxial with an annular nozzle (20). The aft screw (16) has a smaller diameter than the forward screw (12) and the nozzle (20) has an annular duct (B) situated upstream of the rear screw (16) and arranged to discharge the exhaust gases from the engine.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: May 23, 1989
    Assignee: Akzo S.r.l.
    Inventor: Franco Solia